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Inches of mercury to pounds per square inch

1 inch of mercury in pounds per square inch
1 inHg = 0.49115 psi
psi = inHg × 0.4911541996

To convert inches of mercury to pounds per square inch, multiply by 0.4911541996. The table below gives the values people look up most often, and the converter works for any number.

Inches of mercury to pounds per square inch table

Common inch of mercury values converted to pounds per square inch.
Inches of mercury Pounds per square inch
1 inHg 0.49115
2 inHg 0.98231
3 inHg 1.473463
4 inHg 1.964617
5 inHg 2.455771
10 inHg 4.911542
15 inHg 7.367313
20 inHg 9.823084
25 inHg 12.27885
30 inHg 14.73463
40 inHg 19.64617
50 inHg 24.55771
75 inHg 36.83656
100 inHg 49.11542
250 inHg 122.7885
500 inHg 245.5771
1,000 inHg 491.1542

How the conversion works

The relationship is psi = inHg × 0.4911541996. Both units measure pressure, so the conversion is a fixed factor that never changes.

Common questions

How many pounds per square inch are in one inch of mercury?
One inch of mercury equals 0.49115 pounds per square inch. psi = inHg × 0.4911541996.
How do you convert inches of mercury to pounds per square inch?
Use psi = inHg × 0.4911541996. So 10 inHg is 4.911542 psi.
How many inches of mercury are in one pound per square inch?
One pound per square inch equals 2.03602 inches of mercury, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked